NPI - Vendors



NPI Readiness

Effective May 17, 2008, Availity is requiring that all connected payers process any X12 HIPAA standard electronic transactions according to one of the following options.



The options of NPI readiness are as follows:

NPI Readiness
Availity is making every effort to confirm and communicate the status of our connected payers. For our most up-to-date list, please review the NPI Readiness of these payers.

  1. Legacy ID Required.
    • NPI allowed
    • Legacy identifier required
  2. Dual ID
    Allows all of the following scenarios:
    1. NPI only
    2. Legacy identifier only
    3. NPI and Legacy identifiers


  3. NPI per Mandate.
    • NPI required per mandate under HIPAA regulations
    • Legacy identifier not allowed
  4. NPI per Mandate. Legacy ID also allowed.
    • NPI required per mandate under HIPAA regulations
    • Legacy identifier also allowed
    • Available for EDI and B2B only
As noted above, all payers either accept or mandate use of the NPI. Availity is making every effort to confirm and communicate the status of our connected payers. For our most up-to-date list, please review the NPI Readiness of these payers.

Availity’s NPI Validation Rules

In order to support each payer’s readiness for NPI, Availity must validate transactions according to Option specific rules. Options 3 and 4 are new and currently active. Please select one of the new options for validation details.

  • Option 3 (pdf) – NPI per Mandate.
  • Option 4 (pdf) – NPI per Mandate. Legacy ID also allowed.

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